Saturday, December14, 2019
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Marine Weather and Tides
Merriam, KS

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:28AMSunset 4:58PM Saturday December 14, 2019 1:37 AM CST (07:37 UTC) Moonrise 7:34PMMoonset 9:46AM Illumination 93% Phase: Waning Gibbous; Moon at 17 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Merriam, KS
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location: 38.98, -94.7     debug


Area Discussion for - Kansas City/Pleasant Hill, MO
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FXUS63 KEAX 140459 AFDEAX

AREA FORECAST DISCUSSION National Weather Service Kansas City/Pleasant Hill MO 1059 PM CST Fri Dec 13 2019

Discussion. Issued at 310 PM CST FRI DEC 13 2019

Primary forecast focus is on Winter Precipitation Sunday into Monday.

Key Messages .

1. Snow and a wintry mix are on tap for Sunday through Monday. Light snow is expected through the afternoon, Sunday, before increasing chances overnight through Monday morning. Locations south of the Missouri river have the potential for a mix of light snow and freezing drizzle for several hours Sunday night into Monday. Travel conditions will be difficult for much of Sunday through the Monday Morning commute.

2. Colder temperatures will spread across the region tonight into Saturday. Highs will struggle to rise out of the 30s and will likely struggle to climb above freezing Sunday and Monday.

Technical Discussion .

A weak 500mb short wave trough will move east and southeast across the area through Saturday morning, the associated cold front will drop southward. In response, some light rain will remain possible across central and eastern Missouri through the early morning. Temperatures on Saturday will reside in the 30s.

Into Sunday, the broad upper trough over the Intermountain West will pivot, with a broad area of forcing spread across Kansas into Missouri north of the weak surface trough stretched from the western high plains to the Ozarks. This will act as a focus for light snow development through the day, primarily in the afternoon into the early evening. Towards sunset, the upper trough will begin to lift northeast, with increased chances for precipitation across eastern Kansas and Missouri. The challenge at the moment is precipitation along and south of the psuedo-warm front positioned along the Ozark Plateau. Bufkit profiles sampled are primarily all below freezing, but lacking in cloud ice aloft. With the profiles from -6 to -3 C deep, and saturated in the lower levels, thinking we'll end up with a mix of light snow and freezing drizzle for several hours early Monday morning across the Ozarks into central Missouri, south of the Missouri River. Expect cold enough profiles for snow to be the primary precipitation type across the KC Metro, but cannot rule out an hour or two of mixed precipitation late Sunday into Monday. By Sunrise, expect all snow across the region.

Snow amounts will be between 1 to 4 inches, with amounts up to 5 inches possible across portions of central and northeastern Missouri. Across southern and central Missouri, freezing drizzle may cause some minor glazing on elevated surfaces overnight.

Expect quiet weather and a slow warm up to more mild conditions by Thursday into Friday.

Aviation. (For the 06Z TAFS through 06Z Saturday Night) Issued at 1058 PM CST FRI DEC 13 2019

VFR conditions will last a few more hours before a cold front passes through which will develop a MVFR ceiling with a chance of IFR ceilings around sunrise. Some isolated rain showers have developed along the I-70 corridor, but these will move through the TAF locations quickly and likely before the beginning of the 06Z period. Winds will also shift with the passage of this front to the north and start to pick up speed with gusts in the low to mid 20s possible. These lower ceilings will likely last through the morning until some drier air makes its way into the region, finally bringing the area back to VFR mid morning.

EAX WATCHES/WARNINGS/ADVISORIES. KS . NONE. MO . NONE.

Discussion . Kurtz Aviation . Barham


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Olathe, Johnson County Executive Airport, KS9 mi45 minNNW 11 G 208.00 miMostly Cloudy37°F36°F96%1008.9 hPa
Kansas City, Kansas City Downtown Airport, MO11 mi44 minNW 710.00 miMostly Cloudy38°F30°F76%1009.2 hPa
Olathe, New Century Aircenter, KS14 mi45 minNW 117.00 miA Few Clouds36°F32°F86%1009.7 hPa
Lee's Summit, Lee's Summit Municipal Airport, MO17 mi45 minN 1310.00 miA Few Clouds40°F33°F77%1008.4 hPa
Kansas City, Kansas City International Airport, MO24 mi45 minNNW 11 G 216.00 miFog/Mist34°F30°F85%1009.4 hPa

Link to 5 minute data for KOJC

Wind History from OJC (wind in knots)
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Last 24hrCalmCalmS3S4S4S3S4SW4S5W6SW4S5S7S9SW6CalmCalmS3S5S3NW7N15N8N11
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1 day agoS12
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Kansas City/Pleasant Hill, MO (2,6,7,8)
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Ground Weather Radar Station Kansas City/Pleasant Hill, MO
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.